A two-way core pulling mechanism and injection mold

Abstract

The present invention provides a bidirectional core-pulling mechanism and an injection mold, which relate to the field of mold technology. It includes a first core-pulling slider, a second core-pulling slider and a movable mold plate; the first core-pulling slider is slidably connected to the movable mold plate along the first core-pulling direction, and the second core-pulling slider is slidably connected to the movable mold plate along the second core-pulling direction; the second core-pulling slider is slidably connected to the first core-pulling slider along the first sliding direction, and the first sliding direction is inclined relative to the first core-pulling direction and the second core-pulling direction, respectively. When the first core-pulling slider slides and pulls the core along the first core-pulling direction, the second core-pulling slider moves relative to the first core-pulling slider along the first sliding direction, converting the movement of the first core-pulling slider along the first core-pulling direction into the movement of the second core-pulling slider along the second core-pulling direction, realizing bidirectional core-pulling, and avoiding the problem of easy interference and low reliability of core-pulling movements at different angles when there is insufficient space.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a two-way core pulling mechanism and an injection mold. Background Art

[0002] In injection molded products, many features in existing injection molds require core pulling at different angles, and sliders at different angles are set for core pulling at different angles. However, in injection molding of some products, due to the product structure, the core pulling space is limited, which is not enough to arrange the core pulling mechanism, and interference is easy to occur during core pulling. Summary of the invention

[0003] The problem solved by the present invention is that the core pulling space of multi-angle core pulling is limited and interference is easy to occur.

[0004] To solve the above problems, on the one hand, the present invention provides a bidirectional core pulling mechanism, including a first core pulling slider, a second core pulling slider and a movable template; the first core pulling slider is slidably connected to the movable template along a first core pulling direction, and the second core pulling slider is slidably connected to the movable template along a second core pulling direction; the second core pulling slider is slidably connected to the first core pulling slider along the first sliding direction, and the first sliding direction is inclined relative to the first core pulling direction and the second core pulling direction, respectively.

[0005] In this way, the second core-pulling slider is set to be slidably connected with the first core-pulling slider along the first sliding direction, and the first sliding direction is inclined relative to the first core-pulling direction and the second core-pulling direction, respectively. During the mold opening process, when the first core-pulling slider slides and pulls the core along the first core-pulling direction, the second core-pulling slider moves along the first sliding direction relative to the first core-pulling slider, and the movement of the first core-pulling slider along the first core-pulling direction is converted into the movement of the second core-pulling slider along the second core-pulling direction, thereby realizing two-way core pulling and avoiding the problem of easy interference between core-pulling movements at different angles and low reliability when there is insufficient space.

[0006] Optionally, the first core-pulling slider has an inclined slide groove, the second core-pulling slider is provided with an inclined guide rail, and the inclined slide groove and the inclined guide rail are slidably connected; or, the first core-pulling slider has the inclined guide rail, the second core-pulling slider is provided with the inclined slide groove, and the inclined slide groove and the inclined guide rail are slidably connected.

[0007] In this way, the sliding connection between the first core-pulling slider and the second core-pulling slider along the first sliding direction is realized through the sliding connection between the inclined slide groove and the inclined guide column, and the conversion of the movement direction is realized through the sliding connection between the inclined slide groove and the inclined guide rail. The connection structure is reliable, has high force stability, and is highly practical.

[0008] Optionally, a receiving portion is provided on the first core-pulling slider, the receiving portion is located at one end of the first core-pulling slider close to the cavity, and the second core-pulling slider is at least partially received in the receiving portion.

[0009] In this way, a accommodating portion is provided on the first core-pulling slider, and the second core-pulling slider is accommodated by the accommodating portion. The accommodating portion reserves movable space for the second core-pulling slider, thereby saving installation space for the first core-pulling slider and the second core-pulling slider, and avoiding interference between the first core-pulling slider and the second core-pulling slider during the core pulling process. The accommodating portion is provided at one end close to the cavity, and the installation structure of the first core-pulling slider and the second core-pulling slider is more compact, requires less installation space, has high reliability, and is strong in practicability.

[0010] Optionally, it also includes a guide block, which is fixedly mounted on the movable template, the guide block is slidably connected to the second core-pulling slider, and the guide block is used to guide the second core-pulling slider to slide along the second core-pulling direction.

[0011] In this way, a guide block for guiding the second core-pulling slider is provided on the movable template, so that the second slider does not directly contact the movable template. When the usage time is long or the wear is serious, the guide block and / or the second core-pulling slider can be directly replaced. The modular assembly structure is convenient for processing and disassembly, and has high reliability and strong practicality.

[0012] Optionally, a avoidance groove is provided on the first core-pulling slider, and the avoidance groove penetrates the first core-pulling slider along the vertical direction, and the avoidance groove is used to avoid the second core-pulling slider and / or the guide block.

[0013] In this way, an avoidance groove is provided on the first core-pulling slider, and the avoidance groove avoids the second core-pulling slider and / or the guide block, so that the sliding connection between the second core-pulling slider and the movable template can be achieved. There is no need to rely on other structures (for example, an avoidance structure is provided on the second core-pulling slider) to avoid interference between the core-pulling movements of the first core-pulling slider and the second core-pulling slider. It has high reliability and strong practicality. In some special occasions, for example, when the core-pulling part of the second core-pulling slider is located above (obliquely above) the core-pulling part of the first core-pulling slider, the effect is more significant.

[0014] Optionally, the first core-pulling slider includes a slider body and a slider insert, the slider body is slidably connected to the movable template along the first core-pulling direction, and the slider insert is detachably connected to the slider body.

[0015] In this way, the first core-pulling slide groove is configured as a detachably connected slider body and a slider insert, and the modular assembly design reduces the difficulty of processing, is simple to assemble and disassemble, has low application cost in the mold, and is highly practical.

[0016] Optionally, a mounting groove is provided on the slider body, and the slider insert is plug-fitted into the mounting groove.

[0017] In this way, the slider body is plugged into and matched with the slider insert, and the structure in which the slider body and the slider insert are detachably connected is stable, highly reliable, and highly practical.

[0018] Optionally, it further includes an inclined guide column, which is fixedly installed on the fixed template, and an inclined hole is provided on the first core-pulling slider, and the inclined guide column is slidably connected to the inclined hole.

[0019] In this way, the first core-pulling slider is driven to move by the inclined guide column installed on the fixed template. During the mold opening process, the movable template moves to the side away from the fixed template (downward). Under the action of the inclined guide column, the vertical movement of the movable template is converted into the core pulling of the first core-pulling slider in the first core-pulling direction, and at the same time drives the second core-pulling slider to move in the second core-pulling direction. Without the aid of additional drive (such as a cylinder), core pulling in two directions can be achieved, with a high degree of automation, reliable core pulling and strong practicality.

[0020] Optionally, it also includes a shovel base, which is fixedly mounted on the fixed template, the shovel base is in contact with the first core-pulling slider, and the surfaces of the shovel base in contact with the first core-pulling slider are respectively provided with mutually matching guide inclined surfaces.

[0021] In this way, during the mold closing process, the two guide inclined surfaces respectively arranged on the shovel base and the first core-pulling slider come into contact first, and the shovel base drives the first core-pulling slider to move toward the cavity, thereby driving the first core-pulling slider to realize the mold closing action, which can reduce the force on the inclined guide column, thereby increasing the service life of the inclined guide column and has strong practicality.

[0022] Optionally, a boss is provided at the top of the shovel base, a groove is provided at the bottom of the fixed template, and the boss is plugged into the groove; or, the groove is provided at the top of the shovel base, the boss is provided at the bottom of the fixed template, and the boss is plugged into the groove.

[0023] In this way, the installation position of the shovel base on the fixed template is positioned by the cooperation of the plug-in of the boss and the groove, and the shovel base can be restricted from being separated from the fixed template to a certain extent, with high force stability and strong practicality.

[0024] Optionally, it also includes a guide slide seat, which is fixedly mounted on the movable template, the guide slide seat is slidably connected to the first core-pulling slider, and the guide slide seat is used to guide the first core-pulling slider to slide along the first core-pulling direction.

[0025] In this way, the sliding connection structure between the guide slide seat and the first core-pulling slide block has high force stability, high reliability and strong practicality.

[0026] Another aspect of the present invention provides an injection mold, the injection mold comprising any one of the above-mentioned two-way core-pulling mechanisms. The injection mold has the function of the two-way core-pulling mechanism, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a water receiving tray for a cabinet air conditioner;

[0028] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0029] Figure 3 It is a schematic diagram of the overall structure of one implementation mode of the bidirectional core-pulling mechanism of an embodiment of the present invention;

[0030] Figure 4 This is a schematic structural diagram of one implementation of the bidirectional core-pulling mechanism of an embodiment of the present invention after removing the fixed template;

[0031] Figure 5 A top view of one implementation of a bidirectional core-pulling mechanism according to an embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of one implementation of a bidirectional core-pulling mechanism according to an embodiment of the present invention;

[0033] Figure 7 An exploded view of one implementation of the bidirectional core pulling mechanism of an embodiment of the present invention;

[0034] Figure 8 It is a schematic diagram of the assembly structure of one implementation mode of the bidirectional core pulling mechanism of an embodiment of the present invention;

[0035] Fig. 9 An exploded view of one implementation of the bidirectional core pulling mechanism of an embodiment of the present invention;

[0036] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle;

[0037] Fig.11 This is a schematic diagram of the installation structure of the inclined guide column and the shovel base of one implementation manner of the bidirectional core pulling mechanism of an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1-water receiving tray, 110-first plane structure, 111-first inverted structure, 120-first arc surface structure, 130-second arc surface structure, 131-second inverted structure, 210-first core-pulling slider, 211-accommodating portion, 212-inclined slide groove, 213-avoidance groove, 214-installation groove, 2141-through hole, 215-inclined hole, 216-guide slide boss, 220-slider insert, 230-guide slide seat, 240-limiting pressure block, 250-slider body, 310-second core-pulling slider, 311-inclined guide rail, 312-T-slot, 320-guide block, 321-T-guide rail, 410-inclined guide column, 420-shovel base, 421-boss, 430-fixed block, 5-movable template, 6-fixed template, 601-groove, 7-movable mold core. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, taking the water receiving tray of a cabinet air conditioner as an example.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0042] In addition, all directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than implying or suggesting that the device or element referred to must have a specific orientation, and cannot be understood as a limitation of the present invention. An XYZ coordinate system is provided in the present invention, wherein the positive direction of the X-axis represents the right, the reverse direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the rear, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom, wherein "front", "back", "left", "right", "up" and "down" do not constitute a limitation on the specific structure, but are only based on the position in the drawings.

[0043] Please combine Figure 4As shown, the embodiment of the present invention provides a bidirectional core pulling mechanism, including a first core pulling slider 210, a second core pulling slider 310 and a movable plate 5; the first core pulling slider 210 is slidably connected to the movable plate 5 along a first core pulling direction, and the second core pulling slider 310 is slidably connected to the movable plate 5 along a second core pulling direction;

[0044] The second core-pulling slider 310 is slidably connected to the first core-pulling slider 210 along a first sliding direction, and the first sliding direction is inclined relative to the first core-pulling direction and the second core-pulling direction.

[0045] Please combine Figure 1 and Figure 2 As shown, the side of the water receiving tray 1 includes a first curved surface structure 120 and a second curved surface structure 130, and a second inverted structure 111 is arranged on the second curved surface structure 130, and a first plane structure 110 is arranged on the first curved surface structure 120, and a first inverted structure 111 is arranged on the first plane structure 110. Specifically, the first inverted structure 111 is a hole, and the second inverted structure 131 is an inverted hole, wherein the first inverted structure 111 is located below the second inverted structure 131, and the first inverted structure 111 and the second inverted structure 131 are relatively close in spatial position, and the spacing in the up and down direction (Z-axis direction in the figure) and the horizontal plane (XY plane in the figure) is relatively small. The first inverted structure 111 and the second inverted structure both need to adopt the core pulling method to complete the demolding, but due to the limited core pulling space, it is not enough to arrange two separate core pulling structures, and interference is prone to occur during core pulling.

[0046] Specifically, in this specification, the first core-pulling slider 210 is used to form the first inverted structure 111, and the second core-pulling slider 310 is used to form the second inverted structure 131; the demolding (core pulling) directions of the first inverted structure 111 and the second inverted structure 131 are the first core-pulling direction and the second core-pulling direction, respectively.

[0047] Please combine Figure 5 As shown, it should be understood that, for the convenience of description, in this specification, the first core pulling direction is consistent with the positive direction of the X-axis, and the second core pulling direction is a preset angle setting for the positive direction of the X-axis to the positive direction of the Y-axis. In this specification, the specific content of the present invention is explained by taking the preset angle less than ninety degrees as an example, that is, the angle between the first core pulling direction and the second core pulling direction is an acute angle. It should be understood that based on the idea of ​​the technical solution of the present invention, the preset angle may also be greater than ninety degrees. When the preset angle is greater than ninety degrees, it is used for reverse core pulling, and the structures of other parts need to be changed accordingly, which will not be described in detail here.

[0048] It should be understood that, during the mold opening process, the sliding direction of the second slider in the first sliding direction is deflected from the positive direction of the Y axis to the negative direction of the X axis, that is, the included angle between the sliding direction of the second core pulling slider 310 relative to the first core pulling slider 210 and the first core pulling direction is an obtuse angle, so that the conversion of the sliding direction during mold opening can be achieved.

[0049] It should be understood that although the present invention is described in this specification only by taking the first inverted structure 111 and the second inverted structure 131 of the water receiving tray 1 as an example, it may also be other similar scoring directions, it may also have core pulling features in other directions, and in addition, the inverted structure may also be an outward convex structure, such as a convex column.

[0050] Please combine Figure 6 As shown, in some embodiments, a movable mold core 7 is further included, and the movable mold core 7 is fixedly mounted on the movable mold plate 5. The first core-pulling slider 210 and / or the second core-pulling slider 310 pass through the movable mold core 7 and are respectively used to form the first inverted structure 111 and the second inverted structure 131. It should be understood that based on the structure of the water receiving tray, the movable mold core can be set to multiple, and the improvement of the movable mold core structure is not involved here and will not be described in detail.

[0051] Please combine Figure 3 and Fig. 9 As shown, optionally, an inclined guide column 410 is further included, and the inclined guide column 410 is fixedly installed on the fixed template 6. The first core-pulling slider 210 is provided with an inclined hole 215, and the inclined guide column 410 is slidably connected to the inclined hole 215.

[0052] Please combine Figure 3 As shown, it should be noted that the fixed template 6 is located above the movable template 5. During the mold opening process, the movable template 5 is separated from the fixed template 6 along the vertical direction (Z-axis direction). In order to ensure the smooth core pulling action, the end of the inclined guide column 410 away from the fixed template 6 is inclined toward the side away from the cavity, that is, it is inclined outward (right).

[0053] In this embodiment, the first core-pulling slider 210 is driven to move by the inclined guide column 410 installed on the fixed template 6. During the mold opening process, the movable template 5 moves toward the side away from the fixed template 6 (downward). Under the action of the inclined guide column 410, the vertical movement of the movable template 5 is converted into the core pulling of the first core-pulling slider 210 in the first core-pulling direction, and at the same time drives the second core-pulling slider 310 to move along the second core-pulling direction. Without the aid of additional drive (such as a cylinder), core pulling in two directions can be achieved, with a high degree of automation, reliable core pulling, and strong practicality.

[0054] Please combine Fig. 9 As shown, further, in the above embodiment, it also includes a shovel base 420, which is fixedly installed on the fixed template 6, and the shovel base 420 is in contact with the first core-pulling slider 210, and the surfaces of the shovel base 420 in contact with the first core-pulling slider 210 are respectively provided with mutually matching guide inclined surfaces.

[0055] It should be understood that the inclination direction of the guide slope is the same as the inclination direction of the inclined guide column 410, and the cooperation between the inclined guide column 410 and the inclined hole 215 has a certain gap; during the mold closing process, the two guide slopes respectively arranged on the shovel base 420 and the first core-pulling slider 210 first contact, and the shovel base 420 drives the first core-pulling slider 210 to move toward the cavity, driving the first core-pulling slider 210 to realize the mold closing action. During the mold opening process, the inclined guide column 410 contacts the hole wall of the inclined hole 215, driving the first core-pulling slider 210 to move along the first core-pulling direction, which can reduce the force on the inclined guide column 410, thereby increasing the service life of the inclined guide column 410 and having strong practicality.

[0056] It should be understood that, in some embodiments, an oblique mounting hole is provided on the shovel base 420, the oblique guide column 410 is installed in the oblique mounting hole, the shovel base 420 is fixedly connected to the fixed template 6, and the fixed template 6 covers the top end of the oblique mounting hole to restrict the oblique guide column 410 from detaching from the oblique mounting hole.

[0057] In this way, the inclined guide column 410 is installed on the movable template 5 through the shovel base 420, which avoids the cylindrical surface of the inclined guide column 410 directly contacting the movable template 5. The movable template 5 has less wear and tear and a long service life. At the same time, the inclined guide column 410 is easy to disassemble and maintain and has strong practicality.

[0058] Please combine Fig.11 As shown, optionally, a boss 421 is provided at the top of the shovel base 420 , and a groove 601 is provided at the bottom of the fixed template 6 , and the boss 421 is plug-fitted with the groove 601 .

[0059] Specifically, the boss 421 and the groove 601 are plugged together along the vertical direction, and then the shovel base 420 is fixed to the fixed template 6 by fasteners.

[0060] In this embodiment, the installation position of the shovel base 420 on the fixed template 6 is positioned by the plug-in cooperation of the boss 421 and the groove 601, and the shovel base 420 can be restricted from being separated from the fixed template 6 to a certain extent, with high force stability and strong practicality.

[0061] It should be understood that, different from the above arrangement, the top of the shovel base 420 is provided with the groove 601, the bottom of the fixed template 6 is provided with the boss 421, and the boss 421 is plugged and matched with the groove 601. It can also achieve the same effect.

[0062] Please combine Fig.11 As shown, it also includes a fixing block 430, which is fixedly mounted on the side wall of the fixed template 6, and the fixing block 430 is in contact with the top of the shovel base 420. In other words, the fixing block 430 plays a role in auxiliary support of the shovel base 420. In this way, the shovel base 420 can extend out of the fixed template 6 while ensuring the force stability, which can save the installation space of the fixed template 6 and avoid the fixed template 6 being too large and difficult to process.

[0063] In this embodiment, the second core-pulling slider 310 and the first core-pulling slider 210 are set to be slidably connected along a first sliding direction, and the first sliding direction is inclined relative to the first core-pulling direction and the second core-pulling direction, respectively. During the mold opening process, when the first core-pulling slider 210 slides and pulls the core along the first core-pulling direction, the second core-pulling slider 310 moves along the first sliding direction relative to the first core-pulling slider 210, and the movement of the first core-pulling slider 210 along the first core-pulling direction is converted into the movement of the second core-pulling slider 310 along the second core-pulling direction, thereby realizing two-way core pulling and avoiding the problem of easy interference between core-pulling movements at different angles and low reliability when there is insufficient space.

[0064] Please combine Figure 7 and Figure 8 As shown, a receiving portion 211 is provided on the first core-pulling slider 210 . The receiving portion 211 is located at one end of the first core-pulling slider 210 close to the cavity. The second core-pulling slider 310 is at least partially received in the receiving portion 211 .

[0065] It should be understood that, since the second core-pulling slider 310 slides along the first sliding direction relative to the first core-pulling slider 210, the second core-pulling slider 310 can slide in the accommodating portion 211, that is, movement space for the second core-pulling slider 310 is reserved in the accommodating portion 211.

[0066] Please combine Figure 7As shown, specifically, the accommodating portion 211 passes through the left end of the first core-pulling slider 210 (i.e., the end of the first core-pulling slider 210 located opposite to the X-axis) along the second core-pulling direction. In this way, the accommodating portion 211 is reasonably designed, and the core-pulling portion of the second core-pulling slider 310 can extend out of the first core-pulling slider 210 to form the second undercut structure 131, with a compact structure and high reliability.

[0067] Please combine Figure 7 As shown, in some embodiments, along the first sliding direction, the accommodating portion 211 penetrates the second core-pulling slider 310, and the penetration direction is consistent with the sliding direction of the second core-pulling slider 310 relative to the first core-pulling slider 210 when the mold is opened. Figure 7 As shown, along the first sliding direction, the accommodating portion 211 passes through the front end of the first core-pulling slider 210 (that is, the first core-pulling slider 210 is located at one end of the square of the Y-axis). At this time, the accommodating portion 211 is a groove 601 that is recessed inward along the first sliding direction at the front end of the first core-pulling slider 210 (that is, the first core-pulling slider 210 is located at one end of the square of the Y-axis); in this way, it is convenient to put in the second core-pulling slider 310, and when the inclined slide groove 212 or the inclined guide rail 311 is arranged in the accommodating portion 211, it is also convenient to process the inclined slide groove 212 or the inclined guide rail 311.

[0068] Please combine Figure 7 As shown, in other embodiments, along the vertical direction (specifically, the direction perpendicular to the movable template 5, that is, the Z-axis direction in the accompanying drawings), the accommodating portion 211 passes through one end of the first core-pulling slider 210 where the core-pulling portion of the second core-pulling slider 310 is located.

[0069] It should be understood that, along the vertical direction, the first undercut structure 111 and the second undercut structure 131 are not at the same height (position in the Z-axis direction), that is, the core pulling part of the first core pulling slider 210 is not at the same height (position in the Z-axis direction) as the core pulling part of the second core pulling slider 310.

[0070] Specifically, please combine Figure 2 , Figure 7 and Figure 8As shown, in some embodiments, the second undercut structure 131 is located above (diagonally above) the first undercut structure 111, and the core pulling part of the second core pulling slider 310 is located below (diagonally below) the core pulling part of the first core pulling slider 210. At this time, the accommodating portion 211 passes through the top of the first core pulling slider 210, that is, the accommodating portion 211 is located on the side of the first core pulling slider 210 away from the movable template 5, and the accommodating portion 211 is set as a groove 601 or a notch.

[0071] The advantage of such a configuration is that it facilitates the placement of the second core-pulling slider 310 and the processing of the accommodating portion 211, so that the position of the second core-pulling slider 310 on the first core-pulling slider 210 corresponds to the position of the part to be formed (the second undercut structure). In the case of limited space, the installation structure is compact, highly reliable, and highly practical.

[0072] In this embodiment, a receiving portion 211 is provided on the first core-pulling slider 210, and the second core-pulling slider 310 is accommodated by the receiving portion 211. The receiving portion 211 reserves movable space for the second core-pulling slider 310, thereby saving installation space for the first core-pulling slider 210 and the second core-pulling slider 310 and avoiding interference between the first core-pulling slider 210 and the second core-pulling slider 310 during the core pulling process. The receiving portion 211 is provided at one end close to the cavity, and the installation structure of the first core-pulling slider 210 and the second core-pulling slider 310 is more compact, requires less installation space, has high reliability, and is strong in practicability.

[0073] Please combine Figure 7 , Fig. 9 and Fig.10 As shown, optionally, the first core-pulling slider 210 is provided with an inclined slot 212, and the second core-pulling slider 310 is provided with an inclined guide rail 311, and the inclined slot 212 is slidably connected to the inclined guide rail 311. Specifically, the inclined direction of the inclined guide rail 311 is consistent with the first sliding direction.

[0074] It should be understood that since the inclined slide groove 212 and the inclined guide rail 311 need to play a role of sliding guide, the inclined slide groove 212 and the inclined guide rail 311 will be subjected to force to a certain extent. The inclined slide groove 212 can be a T-shaped groove, and the inclined guide rail 311 is a T-shaped guide rail. Alternatively, the inclined slide groove 212 can be a rectangular groove, and the inclined guide rail 311 is a rectangular guide rail. In this embodiment, in order to facilitate processing and disassembly, the inclined slide groove 212 is selected to be a rectangular groove.

[0075] Different from the above-mentioned setting of the inclined slide groove 212 and the inclined guide column 410, in other embodiments, the first core-pulling slider 210 is provided with the inclined guide rail 311, the second core-pulling slider 310 is provided with the inclined slide groove 212, and the inclined slide groove 212 and the inclined guide rail 311 are slidably connected.

[0076] In this embodiment, the sliding connection between the first core-pulling slider 210 and the second core-pulling slider 310 along the first sliding direction is realized through the sliding connection between the inclined slide groove 212 and the inclined guide column 410, and the conversion of the movement direction is realized through the sliding connection between the inclined slide groove 212 and the inclined guide rail 311. The connection structure is reliable, has high force stability, and is highly practical.

[0077] For further information, see Fig.10 As shown, the inclined groove 212 is arranged at the bottom of the accommodating portion 211, and the inclined guide rail 311 is arranged on the side of the second core-pulling slider 310 close to the bottom of the accommodating portion 211; or, the inclined guide rail 311 is arranged at the bottom of the accommodating portion 211, and the inclined groove 212 is arranged on the side of the second core-pulling slider 310 close to the bottom of the accommodating portion 211.

[0078] It should be understood that the bottom of the accommodating portion 211 refers to the side wall along the vertical direction (Z-axis direction) of the accommodating portion 211. In this embodiment, the accommodating portion 211 is the groove 601 or notch at the top of the first core-pulling slider 210. At this time, the bottom of the accommodating portion 211 is the side wall along the vertical direction (opposite to the Z-axis).

[0079] In this embodiment, the sliding connection structure (the inclined slide groove 212 and the inclined guide rail 311) of the first core-pulling slider 210 and the second core-pulling slider 310 are both located in the accommodating portion 211. The sliding core-pulling structure of the first core-pulling slider 210 and the second core-pulling slider 310 is more compact, the sliding structure is reliable, interference is not likely to occur, and the practicability is strong.

[0080] Please combine Figures 7 to 10 As shown, optionally, it also includes a guide block 320, which is fixedly mounted on the movable template 5, and the guide block 320 is slidably connected to the second core-pulling slider 310, and the guide block 320 is used to slide and guide the second core-pulling slider 310 along the second core-pulling direction.

[0081] Specifically, the second core-pulling slider 310 is slidably connected to the guide block 320 via a guide rail slot. Fig.10As shown, in some embodiments, a T-slot 312 is provided at the bottom of the second core-pulling slider 310, and a T-rail 321 is provided at the top of the guide block 320. The T-slot 312 and the T-rail 321 are slidably connected, and the sliding direction is consistent with the second suction direction. In this way, the second core-pulling slider 310 has a reliable sliding guide in the second core-pulling direction and is highly practical.

[0082] It should be understood that the installation structure of the guide block 320 is diverse. For example, in some embodiments, the guide block 320 is installed on the movable template 5 by fasteners. In this way, the installation structure is simple, easy to use and practical. In other embodiments, a fixed seat is also included, and the fixed seat is fixedly installed on the movable template 5. The guide block 320 is fixedly connected to the fixed seat, and a positioning groove for positioning the guide block 320 is provided on the fixed seat. Preferably, the positioning groove matches the bottom contour of the guide block 320. In this way, the guide block 320 does not directly contact the movable template 5. The guide block 320 is mainly worn by the force between the fixed seat, and the accessories can be directly replaced, which further improves the service life of the movable template 5.

[0083] In this embodiment, a guide block 320 for guiding the second core-pulling slider 310 is provided on the movable template 5, so that the second slider does not directly contact the movable template 5. When the usage time is long or the wear is serious, the guide block 320 and / or the second core-pulling slider 310 can be directly replaced. The modular assembly structure is convenient for processing and disassembly, and has high reliability and strong practicality.

[0084] Please combine Figures 7 to 10 As shown, optionally, in the above embodiment, a avoidance groove 213 is provided on the first core-pulling slider 210, and the avoidance groove 213 penetrates the first core-pulling slider 210 along the vertical direction (Z-axis direction), and the avoidance groove 213 is used to avoid the second core-pulling slider 310 and / or the guide block 320.

[0085] It should be understood that at this time, the avoidance groove 213 is connected to the accommodating portion 211. Since the first core pulling slider 210 will slide along the first core pulling direction, the avoidance groove 213 should have sufficient movement clearance to avoid interference with the core pulling movement during mold closing or opening.

[0086] In this embodiment, an avoidance groove 213 is provided on the first core-pulling slider 210. The avoidance groove 213 avoids the second core-pulling slider 310 and / or the guide block 320, so that the second core-pulling slider 310 can be slidably connected with the movable template 5. There is no need to use other structures (for example, an avoidance structure is provided on the second core-pulling slider 310) to avoid interference between the core-pulling movements of the first core-pulling slider 210 and the second core-pulling slider 310. It has high reliability and strong practicality. In some special occasions, for example, when the core-pulling part of the second core-pulling slider 310 is located above (obliquely above) the core-pulling part of the first core-pulling slider 210, the effect is more significant.

[0087] Please combine Fig. 9 As shown, optionally, the first core-pulling slider 210 includes a slider body 250 and a slider insert 220, the slider body 250 is slidably connected to the movable plate 5 along the first core-pulling direction, and the slider insert 220 is detachably connected to the slider body 250. Specifically, it can be detachably connected by screws or by snap-on connection, and its detachable connection facilitates the processing and molding of the slider body 250 and the slider insert 220, mold assembly and accessory replacement. It should be understood that at this time, the accommodating portion 211 and the guide groove are both provided on the slider body 250.

[0088] In this embodiment, the first core-pulling groove is configured as a detachably connected slider body 250 and a slider insert 220, and the modular assembly design reduces the difficulty of processing, is simple to disassemble and assemble, has low application cost in the mold, and is highly practical.

[0089] Please combine Fig.10 As shown, further, optionally, a mounting groove 214 is provided on the first core-pulling slider 210 , and the slider insert 220 is plugged into and matched with the mounting groove 214 .

[0090] Specifically, in some embodiments, the cross section of the installation groove 214 (the cross section in the YZ plane) is a "7"-shaped structure, and the end of the slider insert 220 away from the cavity is plug-fitted into the installation groove 214.

[0091] Specifically, a through hole 2141 is provided at the bottom of the mounting groove 214 , a threaded hole is provided on the slider insert 220 , and the through hole 2141 and the threaded hole are threadedly connected via a fastener.

[0092] Please combine Fig.10 As shown, further, the installation groove 214 penetrates the first core-pulling slider 210 along the front-to-back direction. Specifically, the installation groove 214 is connected to the accommodating portion 211. In this way, the installation groove 214 is easy to process and has high reliability.

[0093] In this embodiment, the slider body 250 is plugged into the slider insert 220 , and the detachable connection between the slider body 250 and the slider insert 220 is stable, highly reliable, and highly practical.

[0094] Please combine Figure 4 As shown, optionally, it also includes a guide slide seat 230, which is fixedly mounted on the movable template 5, and the guide slide seat 230 is slidably connected to the first core-pulling slider 210, and the guide slide seat 230 is used to guide the first core-pulling slider 210 to slide along the first core-pulling direction.

[0095] It should be understood that the guide slide seat 230 is fixedly mounted on the movable template 5 by fasteners, and a guide slide groove is provided on the guide slide seat 230, and the first core-pulling slider 210 is slidably connected to the guide slide groove.

[0096] Please combine Figure 4 , Fig. 9 and Fig.10 As shown, further, it also includes a limiting pressure block 240, which is fixedly installed on the guide slide seat 230, and the limiting pressure block 240 is used to limit the first core-pulling slider 210 from leaving the guide slide groove.

[0097] Specifically, one end (bottom end) of the first core-pulling slider 210 that is slidably connected to the guide slide groove is provided with a guide slide boss 216, and the limiting pressure block 240 limits the guide slide boss 216 from being separated from the guide slide groove, that is, the guide slide boss 216 is located in the sliding channel formed between the limiting pressure block 240 and the guide slide seat 230. In this way, the sliding connection structure between the guide slide seat 230 and the first core-pulling slider 210 has high force stability, high reliability, and strong practicality.

[0098] In this embodiment, a guide slide seat 230 is provided on the movable template 5, and the core pulling guidance of the first core pulling slider 210 is realized through the sliding connection between the guide slide seat 230 and the first core pulling slider 210, thereby avoiding the direct sliding connection between the first core pulling slider 210 and the movable template 5, reducing the processing difficulty of the movable template 5, and at the same time reducing the wear rate of the movable template 5, thereby increasing the service life of the movable template 5.

[0099] Another embodiment of the present invention provides an injection mold, the injection mold comprising any one of the above-mentioned two-way core-pulling mechanisms. The injection mold has the function of the two-way core-pulling mechanism, which will not be described in detail here.

[0100] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A two-way core pulling mechanism, characterized in that: It comprises a first core-pulling slider (210), a second core-pulling slider (310) and a movable die plate (5); the first core-pulling slider (210) is slidably connected to the movable die plate (5) along a first core-pulling direction, and the second core-pulling slider (310) is slidably connected to the movable die plate (5) along a second core-pulling direction; The second core-pulling slider (310) is slidably connected to the first core-pulling slider (210) along a first sliding direction, and the first sliding direction is arranged obliquely relative to the first core-pulling direction and the second core-pulling direction respectively; The first core-pulling slider (210) is provided with an inclined slide groove (212), and the second core-pulling slider (310) is provided with an inclined guide rail (311), and the inclined slide groove (212) and the inclined guide rail (311) are slidably connected; Alternatively, the first core-pulling slider (210) is provided with the inclined guide rail (311), the second core-pulling slider (310) is provided with the inclined slide groove (212), and the inclined slide groove (212) and the inclined guide rail (311) are slidably connected; A receiving portion (211) is provided on the first core-pulling slider (210), the receiving portion (211) is located at one end of the first core-pulling slider (210) close to the cavity, and the second core-pulling slider (310) is at least partially received in the receiving portion (211); The bidirectional core-pulling mechanism further comprises a guide block (320), wherein the guide block (320) is fixedly mounted on the movable platen (5), the guide block (320) is slidably connected to the second core-pulling slider (310), and the guide block (320) is used to guide the second core-pulling slider (310) to slide along the second core-pulling direction; The first core-pulling slider (210) is provided with an avoidance groove (213), the avoidance groove (213) penetrating the first core-pulling slider (210) in a vertical direction, and the avoidance groove (213) is used to avoid the second core-pulling slider (310) and / or the guide block (320).

2. The bidirectional core-pulling mechanism according to claim 1, characterized in that: The first core-pulling slider (210) comprises a slider body (250) and a slider insert (220); the slider body (250) is slidably connected to the movable template (5) along the first core-pulling direction; and the slider insert (220) is detachably connected to the slider body (250).

3. The bidirectional core-pulling mechanism according to claim 2, characterized in that: The slider body (250) is provided with a mounting groove (214), and the slider insert (220) is plug-fitted into the mounting groove (214).

4. The bidirectional core-pulling mechanism according to claim 1, characterized in that: It also comprises an inclined guide column (410), the inclined guide column (410) being fixedly mounted on the fixed template (6), the first core-pulling slider (210) being provided with an inclined hole (215), the inclined guide column (410) being slidably connected to the inclined hole (215).

5. The bidirectional core-pulling mechanism according to claim 1, characterized in that: It also comprises a shovel base (420), the shovel base (420) being fixedly mounted on the fixed template (6), the shovel base (420) being in contact with the first core-pulling slider (210), and the surfaces of the shovel base (420) in contact with the first core-pulling slider (210) are respectively provided with mutually matching guiding inclined surfaces.

6. The bidirectional core-pulling mechanism according to claim 5, characterized in that: The top of the shovel base (420) is provided with a boss (421), the bottom of the fixed template (6) is provided with a groove (601), and the boss (421) is plugged into and matched with the groove (601); or, the top of the shovel base (420) is provided with the groove (601), the bottom of the fixed template (6) is provided with the boss (421), and the boss (421) is plugged into and matched with the groove (601).

7. The bidirectional core-pulling mechanism according to claim 1, characterized in that: It also includes a guide slide seat (230), the guide slide seat (230) is fixedly mounted on the movable template (5), the guide slide seat (230) is slidably connected to the first core-pulling slider (210), and the guide slide seat (230) is used to guide the first core-pulling slider (210) to slide along the first core-pulling direction.

8. An injection mold, characterized in that: It comprises a bidirectional core pulling mechanism as described in any one of claims 1 to 7.

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